视交叉上核 - 百度百科
视交叉上核或称 下丘脑 视交叉上核（suprachiasmatic nucleus, SCN）是 哺乳动物 昼夜节律调节系统的中枢结构，产生和调节睡眠—觉醒、激素、代谢和生殖等众多 生物节律 。
Suprachiasmatic nucleus - Wikipedia
The suprachiasmatic nucleus or nuclei (SCN) is a small region of the brain in the hypothalamus, situated directly above the optic chiasm. It is responsible for regulating sleep cycles in animals.
Neuroanatomy, Nucleus Suprachiasmatic - StatPearls - NCBI Bookshelf
2023年7月24日 · The suprachiasmatic nucleus (SCN) is a bilateral structure located in the anterior part of the hypothalamus. It is the central pacemaker of the circadian timing system and regulates most circadian rhythms in the body. Multiple afferent neuronal tracts project to the SCN.
Suprachiasmatic Nucleus (SCN): Definition, Location, Function
2019年10月4日 · The suprachiasmatic nucleus (or just SCN) is a region of the brain within the hypothalamus which uses signals from the eyes to help establish and maintain the biological clock, or circadian rhythm.
The suprachiasmatic nucleus: Current Biology - Cell Press
2018年8月6日 · The suprachiasmatic nuclei (SCN) are the master regulators of the mammalian circadian clock. In this primer, Patton and Hastings describe the structure of the SCN and explain how autonomous rhythms in gene expression and neural activity are generated, which ultimately control rhythmic physiology and behaviour.
Anatomy and Function of the Suprachiasmatic Nucleus
2023年10月10日 · What is the suprachiasmatic nucleus (SCN)? Learn about the anatomy of this brain region in the hypothalamus and how the SCN controls the body's sleep and wake patterns as well as temperature, metabolism, and hormone release. Discover what happens if the SCN becomes damaged and what other signals may become important.
Suprachiasmatic Nucleus - an overview | ScienceDirect Topics
The Suprachiasmatic Nucleus is a small cluster of neurons located above the optic chiasm in the brain. It plays a crucial role in regulating the circadian rhythm and receives direct input from the retina via the optic chiasm. Additionally, it exhibits sexual dimorphism, with a more elongated shape in females and a more spherical shape in males.
Suprachiasmatic nucleus: Anatomy and function - Kenhub
2024年2月20日 · The suprachiasmatic nucleus consists of two key regions: ventrolateral and dorsomedial subdivisions. The ventrolateral subdivision receives direct input from the retina, which tunes it to the actual length of the day. Additionally, it receives general input from parts of the brainstem and thalamus.
Neuroanatomy, Nucleus Suprachiasmatic - PubMed
2023年7月24日 · The suprachiasmatic nucleus (SCN) is a bilateral structure located in the anterior part of the hypothalamus. It is the central pacemaker of the circadian timing system and regulates most circadian rhythms in the body. Multiple afferent neuronal tracts project to the SCN. Its major tract is the retin …
The suprachiasmatic nucleus - PubMed
2018年8月6日 · Like it or not, your two suprachiasmatic nuclei (SCN) govern your life: from when you wake up and fall asleep, to when you feel hungry or can best concentrate. Each is composed of approximately 10,000 tightly interconnected neurons, and the pair sit astride the mid-line third ventricle of the hypoth …